:root {
  --ink: #0b263d;
  --deep: #061827;
  --cyan: #25bed0;
  --orange: #f16137;
  --line-green: #06c755;
  --paper: #f6f5f1;
  --white: #fff;
  --muted: #6f7e8b;
  --page: min(1180px, calc(100vw - 64px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Hiragino Sans", "Yu Gothic", "Noto Sans JP", system-ui, sans-serif; line-height: 1.65; }
a { color: inherit; text-decoration: none; }
.page-width { width: var(--page); margin: 0 auto; }
.eyebrow { margin: 0; color: var(--orange); font: 700 11px/1.2 Georgia, "Times New Roman", serif; letter-spacing: .16em; }
.eyebrow.light { color: var(--cyan); }

.line-site-header { position: absolute; z-index: 3; top: 0; right: 0; left: 0; display: flex; align-items: center; justify-content: space-between; height: 80px; padding: 0 max(32px, calc((100vw - 1180px) / 2)); color: var(--white); }
.line-wordmark { display: grid; gap: 2px; line-height: 1; }
.line-wordmark span { font: 700 31px/.75 Georgia, "Times New Roman", serif; letter-spacing: .02em; }
.line-wordmark small { font: 700 8px/1 Arial, sans-serif; letter-spacing: .2em; }
.line-header-link { padding-bottom: 5px; border-bottom: 2px solid var(--orange); font: 800 10px/1 Arial, sans-serif; letter-spacing: .12em; }

.line-hero { position: relative; display: grid; min-height: max(710px, 100svh); overflow: hidden; color: var(--white); background: var(--deep); }
.line-hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 38%; filter: saturate(.8); }
.line-hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(3,16,28,.85) 0%, rgba(3,16,28,.48) 51%, rgba(3,16,28,.18) 100%); }
.line-hero-inner { position: relative; z-index: 1; align-self: center; padding: 138px 0 90px; }
.line-hero h1 { max-width: 850px; margin: 25px 0 0; font: 700 clamp(58px, 8.2vw, 118px)/.84 Georgia, "Times New Roman", serif; letter-spacing: 0; }
.line-lead { margin: 30px 0 0; color: #d5e1e9; font-size: clamp(15px, 1.5vw, 18px); line-height: 1.9; }
.line-button { display: inline-flex; align-items: center; gap: 48px; margin-top: 39px; padding: 17px 21px; border: 1px solid transparent; font-size: 13px; font-weight: 800; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.line-button:hover { transform: translateY(-2px); }
.line-button.primary { color: var(--white); background: var(--line-green); }
.line-button.primary:hover { background: #05af4c; }
.line-button.dark { color: var(--white); background: var(--ink); }
.line-button.dark:hover { background: #15415f; }
.line-id { margin: 15px 0 0; color: #c3d5df; font: 700 10px/1 Arial, sans-serif; letter-spacing: .08em; }
.line-id span { color: var(--white); }
.line-scroll { position: absolute; z-index: 1; bottom: 28px; left: max(32px, calc((100vw - 1180px) / 2)); display: flex; align-items: center; gap: 13px; color: #d2e0e7; font: 800 9px/1 Arial, sans-serif; letter-spacing: .15em; }
.line-scroll span { display: block; width: 77px; height: 1px; background: var(--cyan); }

.line-value-section { padding: 132px 0 146px; }
.line-section-heading { display: grid; grid-template-columns: .85fr 1.4fr 1fr; gap: 44px; align-items: end; }
.line-section-heading h2 { margin: 0; font: 700 clamp(50px, 6vw, 88px)/.86 Georgia, "Times New Roman", serif; letter-spacing: 0; }
.line-section-heading > p:last-child { max-width: 330px; margin: 0 0 6px; color: var(--muted); font-size: 14px; }
.line-value-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 74px; border-top: 2px solid var(--ink); }
.line-value-grid article { min-height: 278px; padding: 23px 23px 20px; border-right: 1px solid #cad8dd; border-bottom: 1px solid #cad8dd; }
.line-value-grid article:first-child { padding-left: 0; }
.line-value-grid article:last-child { border-right: 0; }
.line-value-grid p { margin: 0; color: var(--orange); font: 700 13px/1 Georgia, "Times New Roman", serif; }
.line-value-grid h3 { margin: 43px 0 0; color: var(--cyan); font: 800 10px/1 Arial, sans-serif; letter-spacing: .14em; }
.line-value-grid strong { display: block; margin-top: 12px; font: 700 20px/1.4 Georgia, "Times New Roman", serif; }
.line-value-grid span { display: block; margin-top: 17px; color: var(--muted); font-size: 13px; line-height: 1.7; }

.line-flow-section { padding: 128px 0; color: var(--white); background: var(--ink); }
.line-flow-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 120px; }
.line-flow-section h2 { margin: 26px 0 0; font: 700 clamp(56px, 6.5vw, 98px)/.82 Georgia, "Times New Roman", serif; letter-spacing: 0; }
.line-flow-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.32); }
.line-flow-list li { display: grid; grid-template-columns: 64px 1fr; gap: 16px; padding: 25px 0; border-bottom: 1px solid rgba(255,255,255,.32); }
.line-flow-list li > span { color: var(--cyan); font: 700 11px/1.5 Arial, sans-serif; letter-spacing: .12em; }
.line-flow-list strong { font: 700 22px/1.25 Georgia, "Times New Roman", serif; }
.line-flow-list p { margin: 8px 0 0; color: #bcd0dd; font-size: 14px; }

.line-join-section { padding: 128px 0; background: #e9f3f6; }
.line-join-layout { display: grid; grid-template-columns: .66fr 1.34fr; gap: 122px; align-items: center; }
.line-qr-wrap { display: grid; justify-items: center; gap: 15px; padding: 33px; background: var(--white); box-shadow: 0 20px 45px rgba(8,35,54,.12); }
.line-qr-wrap img { display: block; width: min(100%, 268px); height: auto; }
.line-qr-wrap p { margin: 0; color: var(--ink); font: 800 9px/1 Arial, sans-serif; letter-spacing: .14em; }
.line-join-section h2 { margin: 23px 0 0; font: 700 clamp(49px, 5.5vw, 82px)/.86 Georgia, "Times New Roman", serif; letter-spacing: 0; }
.line-join-section h2 + p { max-width: 465px; margin: 28px 0 0; color: #4f6575; font-size: 16px; }

.line-footer { padding: 27px 0; color: var(--white); background: #071a2a; }
.line-footer > div { display: flex; align-items: center; justify-content: space-between; font: 700 10px/1 Arial, sans-serif; letter-spacing: .1em; }
.line-footer a { color: var(--cyan); }

@media (max-width: 800px) {
  :root { --page: min(100% - 40px, 640px); }
  .line-site-header { height: 66px; padding: 0 20px; }
  .line-wordmark span { font-size: 25px; }
  .line-header-link { font-size: 9px; }
  .line-hero { min-height: 720px; }
  .line-hero > img { object-position: 61% center; }
  .line-hero-shade { background: linear-gradient(90deg, rgba(3,16,28,.8), rgba(3,16,28,.22)); }
  .line-hero-inner { align-self: end; padding: 112px 0 105px; }
  .line-hero h1 { font-size: clamp(54px, 16.5vw, 80px); }
  .line-lead { font-size: 14px; }
  .line-lead br { display: none; }
  .line-button { width: 100%; justify-content: space-between; }
  .line-section-heading, .line-flow-layout, .line-join-layout { grid-template-columns: 1fr; gap: 31px; }
  .line-value-section, .line-flow-section, .line-join-section { padding: 82px 0; }
  .line-section-heading > p:last-child { max-width: 100%; }
  .line-value-grid { grid-template-columns: 1fr 1fr; margin-top: 48px; }
  .line-value-grid article { min-height: 235px; padding: 19px 14px; }
  .line-value-grid article:first-child { padding-left: 14px; }
  .line-value-grid article:nth-child(2) { border-right: 0; }
  .line-value-grid h3 { margin-top: 34px; }
  .line-value-grid strong { font-size: 17px; }
  .line-value-grid span { font-size: 12px; }
  .line-flow-section h2 { font-size: clamp(58px, 18vw, 80px); }
  .line-join-layout { gap: 44px; }
  .line-qr-wrap { width: min(100%, 310px); justify-self: center; }
  .line-footer > div { align-items: start; gap: 10px; flex-direction: column; }
}